主星带伴随小卫星编队系统的AT-INSAR基线研究  

Baseline Analysis of Along Track Interferometric SAR for Spaceborne Parasitic Radar System

作　　者：刘建平[1] 梁甸农[1] 何峰[1] 

机构地区：[1]国防科技大学电子科学与工程学院,湖南长沙410073

出　　处：《电子学报》2007年第3期590-592,F0004,共4页Acta Electronica Sinica

摘　　要：对于小卫星编队雷达系统来说,基线是编队构形设计的关键,本文主要从AT-INSAR(Along Track Inter-ferometry Synthetic Aperture Radar,简称AT-INSAR)测速精度方面来分析基线:首先根据小卫星编队空间几何关系,建立了空间基线的模型;接着建立了主星带伴随小卫星编队雷达系统AT-INSAR模型;基于这两个模型,分析了空间基线对于测速精度的影响;最后以“干涉车轮”为例仿真分析了空间基线对于AT-INSAR测速精度的影响,得到了有用的结论.Baseline is the key of formation flying for satellite cluster. Baseline is analyzed from velocity resolution of alongtrack interferrometry SAR：firstly, based on spatial geometry relation , the model of spatial baseline is established; then, the model of along track interferometry SAR is established;based on the two models, the influence of spatial baseline on velocity resolution is analyzed;finally, take example for ＂Interferometric Cartwheel＂, the influence of spatial baseline on velocity resolution is simulated and calculated, and the results are useful.

关 键 词：小卫星编队 空间基线 顺轨干涉 测速精度 

分 类 号：TN957[电子电信—信号与信息处理]